dirt-n; 6 Senses

Sense Number 1: organic substance, surface layer of soil

Commentary: DIRT[+entity][+substance][+layer][+surface][+organic][+soil]

The strong wind blew the dry dirt in the fields into brownish-yellow clouds.
The children's boots tracked dirt onto the carpet.
John scrubbed off the dirt under his fingernails with a brush.
This is the kind of rough terrain you could ride a dirt bike on.
The prospector finally hit pay dirt. (he found valuable ore)

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a defiled, spoiled state, physical or social

Commentary: DIRT[+state][+defiled][+physical/+social]

The dirt and noise of industry marred the formerly peaceful city by the sea.
The candidate has promised to clean up the dirt in city government.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: excrement, feces

Commentary: DIRT[+entity][+substance][+excrement]

Mary was disgusted by the dog dirt all over the park.
The elderly in that nursing home had lain in their own dirt for days at a time.

WordNet 3.0 Sense Numbers: 3

Sense Number 4: malicious gossip about a specific person or group

Commentary: DIRT[+activity][+communication][+discourse][+gossip][+malicious][+targeted] [+entity][+symbolic][+information][+content][+injurious][+targeted]
NOTE: implies injurious gossip about someone, not necessarily licentious content at large (Sense 6)

They've been spreading dirt about her ex-husband.
Is there any dirt we can dig up about Sally?

WordNet 3.0 Sense Numbers: 4

Sense Number 5: being viewed as worthless, contemptible

Commentary: DIRT[+quality][+contemptible]

She treats him like dirt.
These homeless people are considered dirt by the wealthy landowners.
He makes his employees feel like dirt.

WordNet 0.0 Sense Numbers: 1d

Sense Number 6: licentious information content

Commentary: DIRT[+entity][+symbolic][+information][+content][+licentious][-targeted]
NOTE: refers to morally offensive or sexually explicit content, doesn't imply targeted gossip (Sense 4)

They objected to the dirt that television projected into their homes.
The radio cannot broadcast the type of dirt he dishes out on his program.

WordNet 0.0 Sense Numbers: 1g